Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“Wir sind mit der Leistung äußerst unzufrieden.”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 2621780523

Proof data

Record hash (SHA-256)

f633c6fadf4489c6f7dc4b8e0211632ce941bd9e77b77fa093702f55f9e4bce4

Signature (Ed25519, base64)

i1WRUIsmw+VFcYV/Etej2QqeBYvtsCMPOsKeb/UiAo3Wp++2/eL9PXnBc8EK8tFsWzzdkxkRdful9A8xr2Z0CQ==

Merkle root

7b426d9a8e4778c60509753003c7b551184ce3f76e1db9b678c604656c147d81

Merkle path

["f633be2b113cb3ad49c59e6166cc40ae9afeff6b167187b50d6b15eafbd7b00a","5f420b49d421d9c60261fa0f3307be9fd674632148821439cc4bd15b05239de4","29445ecaafd267c24cf1391862221195332210c232011b6892fe1aaace786820","957c8c896383063c4ff9e7271f031efd3c3e540332cc4bd8b2c0560384ee4dac","daa71c4b983af9505b9b915ee0fea2e27d2eefe009a28d1147d34ec391ab7b2b","6fb8592e30ee4a987d0890c3dbf234b29d8584461d7b69ac53b1ce86fc170a53","371c1e292d4ad2637b4000521fcead630236756803fd49f6346383d25a365551","4beda114d856eede8f6e9be8e3059220aa34d342efb1a505712a716b07b984e6","c88c0c63805730378243d4c6ffabd644512e91d77f91e9ba71d6fcb11166dbf9","417192c8f70dd2097d0221f9d1f1bb71ec97f6e6a230f460ffb58753a842ef73","52347d77917bffd3fd81463daba1b50a7d6aa9834d5d140c6c5cdf09a45a5234","592dba3a944f7cab6cc1ce50bc9d1f9103ec6ade086e80d471077ead0a764463","5cfd3f01cfc088b9ce004c6cc4dda4490d6ee2e150a101125197cdd0e0e5936f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621780523 · entry 108e9186e8c5677a0666…

Expected log hash

8cedab57a40119bdaca7f2b5c6cf9bb1e2c3e69dc6a6b7339d16a6592c70750e The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.

Canonical record

{"dataset_version":"v1787891923870","kind":"published-quote","locale":"de","page":"theme:metrohm/durability/de","quote":"Wir sind mit der Leistung äußerst unzufrieden.","rating":1,"review_date":"2025-12-13","source":"SelectScience","source_url":"https://www.selectscience.net/product/omnis#reviews","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (7b426d9a8e47…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.